Field Name is string empty ("") when validate nested attribute

[rindibudiaramdhan]

Issue

I had issue when I validate entity like this,

type UserProfile struct {
   NestedEntity    *NestedEntity   `json:"nested_entity" validate:"required,omitempty"`
}

type NestedEntity struct {
   SubNestedEntity  *SubNestedEntity  `json:"sub_nested_entity" validate:"required,omitempty"`
}

type SubNestedEntity struct {
   TypeData string `json:"type_data" validate:"required"`
}

return of validate is like this,

{
   "": "The  field is required"
}

Solution

In this file (github.com/fazpass/goliath/v3/helper/validator)we need add this line of codes to identify the name of attribute

30. if field == "" {
31.     field = e.Field()
32. }

This is full file

package validator

import (
	"fmt"
	"reflect"

	govalidator "github.com/go-playground/validator/v10"
)

func Validate(s interface{}) map[string]string {
	var (
		structValue         = reflect.ValueOf(s)
		structValueIndirect = reflect.Indirect(structValue)
		structType          = structValueIndirect.Type()
		validator           = govalidator.New()
		err                 = validator.Struct(s)
		errs                = map[string]string{}
	)

	if err == nil {
		return nil
	}

	validatorErrs := err.(govalidator.ValidationErrors)
	for _, e := range validatorErrs {
		var (
			structfField, _ = structType.FieldByName(e.Field())
			field           = structfField.Tag.Get("json")
		)
		if field == "" {
			field = e.Field()
		}
		errs[field] = GetMessage(field, e.ActualTag())
	}

	return errs
}